Weeding is the chore that gardeners
dislike the most.
Drip irrigation can help reduce both the number of weeds in a garden
and the amount of work it takes to pull any weeds that remain.
Wet area
Drip irrigation drippers wet a small area around the stem or crown
of each plant. The size of the wet surface area will vary depending
on the
soil
type. The wet spot will be small in sandy soils and larger in clay
soils. All the rest of the garden surface stays dry and inhibits
the growth of weeds and the sprouting of new weeds.
Unlike sprinklers that irrigate both crops and weeds equally well,
drip irrigation can help keep the garden dry and can reduce the number
of
weeds you have to pull.
Compaction
Drip irrigation does not compact the soil. The slow drop by drop
flow of water is much gentler than the "hard rain" effect of many sprinklers.
Another source of compaction is puddles. Sprinklers often create
puddles in clay soils and when the soupy puddles dry, the earth dries
with a hard
crust
which
contributes
to compaction. With drip irrigation, puddle compaction
is avoided.
Compaction of any kind makes it more difficult to pull weeds. With
most sprinklers, you have little choice. Between the puddles and
the
hard impact of
the large drops on the soil surface, compaction will occur. But with
drip irrigation, you avoid compaction and have the opportunity to
go no-till. |